## Algebra 1

$-5 \sqrt \frac{162t^{2}}{2}$ $162t^{2} \div 2$ can be simplified to $81t^{2}$ $-5 \sqrt 81t^{2}$ Square root of $81t^{2}$ is 9t because 9t x 9t = $81t^{2}$ $-5 \times 9t$ -45t